PokerSolver
PokerSolver/5-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs BTN 4-bet 17.25bb

BB vs BTN 4-bet 17.25bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 60bb · BTN opens 2.5bb, BB 3-bets to 7.5bb, BTN 4-bets to 17.25bb · Big blind to act

5-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 26.05bbYour cards?
7.5bb
17.25bb
0.5bb

Tap your two cards.

Big blind's range

694 of 1,326 combos get here
Fold 79%Call 5%All-in 59.84bb 16%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN opens 2.5bb, BB 3-bets to 7.5bb, BTN 4-bets to 17.25bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 60bb?

BTN opens 2.5bb, BB 3-bets to 7.5bb, BTN 4-bets to 17.25bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 60bb: the big blind (BB) folds 79%, calls 5% and goes all-in 59.84bb 16%. Always call: AJs, QTs, JTs. Always all-in 59.84bb: TT+, 77, 44, AQs+, A4s, KTs+, AQo+. Mixed: 88-99, 55-66, ATs, A5s, QJs, T9s, 87s, 76s, 65s.

Always fold
A6s, A3s, K3s-K6s, Q5s-Q9s, J9s, J4s-J7s, T4s-T7s, 95s+, 85s-86s, 75s, 73s, 62s-64s, 52s+, 42s+, 32s, ATo-AJo, A2o-A6o, KQo, K5o-K7o, Q7o+, J8o+, T7o+, 97o+, 76o, 65o, 54o
Always call
AJs, QTs, JTs
Always all-in 59.84bb
TT+, 77, 44, AQs+, A4s, KTs+, AQo+
Mixed
88-99, 55-66, ATs, A5s, QJs, T9s, 87s, 76s, 65s
Settings: 5-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 60bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.3). A jackpot fee on bigger pots is not in this solve, so lines that build big pots may be slightly too loose. Bet sizes are the solved ones; a size that is not here plays like the nearest one.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: the ante from 93 of our own CoinPoker hands at $0.25/$0.50 with a $0.08 ante, played 2026-09-30; the caps and the preflop rule from coinpoker.com/games/texas-holdem/, fetched 2026-10-31.